McCree

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McCree is a offense character he normally is used to pick off or damage other non-tank characters with is revolver and flash bang.

McCrees  opposite characters are widowmaker, hanzo and bastion, one way that McCree can kill his opposites is if he stuns them with his flashbang.

 

genji

hero-1

genji is a offense character. he is used to defeat defense characters like bastion and Torbjorn by using is katana to deflected bullets, sending them back.

but genji  opposite characters are Winston, mei and zarya because these characters dont use bullets. so as genji the only way to beat these characters  is to keep moving around random patterns.